Home / 38,265.85-57,398.79-11,970.70

Finding the Fourth Proportional to 38,265.85, 57,398.79 and 11,970.70

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Solution

The fourth proportional to 38,265.85, 57,398.79 and 11,970.70 is: 17,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,265.85 : 57,398.79 = 11,970.70 : x
  2. Step 2: Convert to fraction form
    38,265.85/57,398.79 = 11,970.70/x
  3. Step 3: Cross multiply
    38,265.85x = 57,398.79 × 11,970.70
  4. Step 4: Simplify right side
    38,265.85x = 687,103,695.45
  5. Step 5: Solve for x
    x = 687,103,695.45/38,265.85
  6. Step 6: Final answer
    x = 17,956.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.